You need to try the pattern lock or passcode 5 times in a row to be given the chance to reset the handset with your Gmail account. If you fail to draw the correct unlock pattern on the screen after five attempts, the phone will prompt you to wait for 30 seconds before you can try again. If you forgot your screen unlock pattern or security passcode, touch Forgot pattern (or passcode). You will be prompted to sign in using your Google account and create a new screen unlock.
It is the same steps for Patter or passcode (pin code)
Unfortunately, if the option is not available then the only option is to perform the factory reset. The good news is that you can try using recovery software on the phone to retrieve the information off it. If you are not comfortable with performing it yourself, any local repair shop should be able to do it for you.
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